Roger Federer became the oldest world number one on Friday when the 20-time Grand Slam title winner reached the semi-finals of the Rotterdam Open. The 36-year-old Swiss overcame an early setback to beat Robin Haase of the Netherlands 4-6, 6-1, 6-1 and will replace old rival Rafael Nadal at the top of the rankings. Federer surpasses Andre Agassi, who held the top spot aged 33 years and 131 days in 2003, as the oldest man to claim the world number one spot.
It is Federer's first time back at the summit since October 2012 having first claimed the top position in February 2004.#rogerfederer#worldno1#tennis#tennisfans#grandslam#andreagassi#rafaelnadal#like4like#followforfollow

Ieri @rogerfederer, battendo @robin_haase a Rotterdam, a 36 anni è diventato il numero 1 più anziano di sempre nella storia dell’ATP. Il record precedente era di @agassi, 33. Roger said: "reaching number one is the ultimate achievement in tennis. When you're older you have to work double the amount, you have to wrestle it back from someone who's also worked hard to get there. It's a dream come true". #WINNER

People keep talking about "The oldest number 1". Thats not exciting. What is exciting is that
Federer is #1, Nadal is #2 and for everyone who has been following Federer's journey over the past 15 years, everything feels right with the world again.